Hillary Clinton has tried to solidify support from black voters by questioning Bernie Sanders’ commitment to the civil rights movement but new images have been released which show a young Bernie Sanders being arrested during a civil rights protest.

Man Captured on Film Being Arrested in a 1963 Protest is Bernie Sanders, His Campaign Says

In recent days, Hillary Clinton’s campaign has questioned Senator Bernie Sanders’s commitment to civil rights, trying to cement her support among black voters who could be crucial in upcoming primaries such as South Carolina’s.

A lifeline has now arrived for the Sanders campaign, in the form of film footage more than half a century old.

On Monday, a film company, Kartemquin Films, uploaded footage of a young man, wearing thick glasses, surrounded by police officers who grabbed him by his arms and carried him away.

The man looked like it could be Mr. Sanders, so the company asked the public and Mr. Sanders to help confirm whether it was. On Friday, Michael Briggs, a spokesman for Mr. Sanders’s campaign, and Tad Devine, a senior adviser to the campaign, said Mr. Sanders had said it was him. What sealed it was the watch the man is wearing; Mr. Sanders recalled owning a watch like that, Mr. Devine said.

Bernie Sanders’ wife said Saturday that a recently emerged photo of the now-Vermont senator being arrested after protesting segregated housing in the early 1960s is proof of his advocacy for civil rights.

“I think his opponent is trying to cast him as not having much of a civil rights record,” Jane Sanders told CNN’s Fredricka Whitfield on “CNN Newsroom,” referring to Hillary Clinton. “And I think a picture is worth a thousand words.”